Conformally coupled dark matter

Dark matter is obtained from a scalar field coupled conformally to gravitation; the scalar being a relict of Dirac's gauge function. This conformally coupled dark matter includes a gas of very light ($m\approx 2.25\times 10^{-34} eV$) neutral bosons having spin 0, as well as a time-dependent global scalar field, both pervading all of the cosmic space. The time-development of this dark matter in the expanding F-R-W universe is investigated, and an acceptable cosmological behaviour is obtained.Comment: LaTEX File 10 pages, no figure

Creation of fundamental particles in Wesson's IMT

Fundamental particles, regarded as the constituents of quarks and leptons, are described classicaly in the framework of the Weyl-Dirac version of Wesson's Induced Matter Theory. There are neutral particles and particles having charge Q=+/-(1/3e). The particles appear on the 4D brane, our universe, and are filled with a substance induced by the 5D bulk. This substace is taken to have mass density, charge density, pressure and is characterized by the prematter eq. of state P+\rho=0. The interior is separated from the surrounding vacuum by a boundary surface where the 4D metric tensor satisfies an a'la Schwarzschild condition. Outside of the boundary holds the Schwarzschild, or the Reissner-Nordstroem Metric, while the particles are characterized by mass, radius, charge.Comment: 29 pages. Submitted for publication in the Gen. Rel. and Grav. Journa